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drm/radeon/kms: add support for internal thermal sensor on SI

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Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher
2012-03-20 17:18:10 -04:00
committed by Dave Airlie
parent 14607d0836
commit 1bd47d2e16
4 changed files with 32 additions and 0 deletions
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19
drivers/gpu/drm/radeon/si.c
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@@ -28,6 +28,25 @@
#include "sid.h"
#include "atom.h"
/* get temperature in millidegrees */
int si_get_temp(struct radeon_device *rdev)
{
u32 temp;
int actual_temp = 0;
temp = (RREG32(CG_MULT_THERMAL_STATUS) & CTF_TEMP_MASK) >>
CTF_TEMP_SHIFT;
if (temp & 0x200)
actual_temp = 255;
else
actual_temp = temp & 0x1ff;
actual_temp = (actual_temp * 1000);
return actual_temp;
}
/* watermark setup */
static u32 dce6_line_buffer_adjust(struct radeon_device *rdev,
struct radeon_crtc *radeon_crtc,